Horseshoe



(No Model.) I

8 Rs. THURBER.

' HORSESHOE.

Patented Mar.27,1883.

Inventor;

' UNITED STATES PATENT OFFICE.

EDWIN S. THURBER, BOSTON, MASSACHUSETTS.

HORSESHOE.

SPECIFIGATTON forming part of Letters Patent No. 274,853, dated March 2'7, 1883. Application filed February 3', 18$. (No modeh) To all whom it may concern Be it known that I, EDWIN STANTONTHUR- BER, of Boston, in the county of Suffolk, of the State of Massachusetts, have invented a new and useful Improvement in Horseshoes; and I do hereby declare the same to be described in the following specification, and represented in the accompanying drawings, of which Figure 1 is a bottom view, Fig. 2 a horizontal section, Fig. 3 a longitudinal section, and Fig. 4 a transverse section, of a horseshoe provided with my invention, the nature of which is definedin the claims hereinafter presented. Fig. 5 is a transverse section of one of the flank-sections of the shoe, and showing the arrangement of a screw to it and the portion of a hoof directly over it.

This shoe'is designed to be fastened to a hoof by means of screws, instead of nails, one of such screws being shown in side view in Fig. 6, wherein it is represented as grooved lengthwise through its thread, the groove being marked a. To receive the screws the shoe has holes 0 0 extending through it, each of which has its axis inclined outwardly at an obtuse angle to the plane of the top surface of the shoe, thesame being so as to insure the screws being driven obliquely-into the solid parts and toward the outer surface of the hoof, and not into the quick, such screws, when in the shoe, not standing parallel to the wall of the hoof, but inclined to it in manner as represented in Fig. 5. Into the said groove to in the screws the hoof will contract, so as to operate to prevent accidental back turning of the screws in the hoof. Each screw-hole 0 opens or leads out of a tapering recess, 1), for reception of the head of the screw. All of such recesses on either side of the shoe open, as shown, into a recess, d, extending lengthwise of the shoe, and inclined with respect to the lower face of the shoe in manner as represented. The recesses d d are to prevent the shoe from balling, or becoming clogged with snow, mud, or stones. One object of having each screw-head recess b to open laterally only into the recess 01 is to enable any snow, ice, or dirt that may accumulate in the recess 1) to readily escape or be discharged therefrom laterally. Each recess b hasbut one lateral opening,and that leadsinto the recess (2. This is better than to have the screw-head recess to open laterally through the outer edge of the shoe.

In the drawings the shoe is represented as in two separate parts, A A, connected at the toes by a spiral spring, B, screwed into both, and arrangedin them as represented, there being between thetoes, and on the spring which goes through it, an elastic or vulcanized rubber cushion, O. In this shoe the screw-holes ff, into which the spiral spring is screwed, do not go entirely through the parts A A of the shoe, each being in length half or about half the length of the spring, in order that the spring may not work out of place'in them or turn wholly out of either, the two parts AA being screwed upon the spring. Furthermore, the shoe thus constructed is provided with heel-calks g g and toe-calks h h, fitted into dovetailed recesses made in it to receive and support such calks. Y

A shoe made in two separate parts or sections and connected at their toes by a spiral spring screwed partly in each constitutes the subject of claim made by me in an application for a patent recently filed by me and allowed, such shoe also being provided with an elastic or rubber cushion arranged on the spring and between the two sections. Inthat shoe each of the threaded holes for receiving the spring extended entirely through the section, thereby rendering the spring liable, when in use, to

turn around and workout and project more or less outwardly beyond one of the sections.

By having the screw-hole to extend but par tially through each section and less in length than the spring, such spring, when in the screw-holes, cannot work out of either of them. By having the two sections connected at the too by means as described, and provided with anti-balling and screw-head recesses, arranged. v

as described, the'shoe will free itself quicker of snow or earth than when without the toeconn'ection, for the shoe will spread with the hoof on its striking the ground, and thereby loosen the hold of thesnow or earthin the shoe. What Iclaim, therefore, in the present horse shoe, as described, is asfollows, viz:

l. The two sections A A, provided at their toes with screw-threaded holes extendin g par- 'tially throughthem, in combination with an elastic cushion'placed between such toes, and

with a spiral spring going through such cushtween the said toes an elastic cushion, all beion and screwed into each of such screw-threading substantially as set forth, such sections to 10 ed holes, all being substantially as set forth. be connected with a hoof by screws arranged 2. The horseshoe made injtwo sections, AA, in them and it, as explained. provided with anti-balling and screw-headed EDWIN STANTON THURBER.

recesses arranged in them and with each other, Witnesses: as described, and also connected at the toes by R. H. EDDY, a spiral spring, and having thereon and be- S. N. PIPER. 

